package com.zll.controller;

import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.zll.domain.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
@RequestMapping("/order")
public class OrderController {
    @Autowired
    private RestTemplate restTemplate;


    @GetMapping("/getUserById/{id}")
    @HystrixCommand(fallbackMethod = "getUserByIdFallback")
    public User getUserById(@PathVariable("id")Long id) {
        // spring给我们提供了一个对象，这个对象可以帮助我们发送请求RestTemplate
        // String url = "http://localhost:10220/getUserById/"+id;
        String url = "http://user-service/user/getUserById/"+id;
        // 第一个参数是请求地址，第二个参数是返回值的类型的字节码对象
        User user = restTemplate.getForObject(url,User.class);
        return user;
    }

    public User getUserByIdFallback(Long id) {
        return new User(-1L,"服务熔断触发","当前用户服务不可用，请稍后重试");
    }
}
